Page 51 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-24
6
EAU00732
Checking the brake fluid level Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake flu-
id level may indicate worn brake pads
and/or brake system leakage. If the
brake level is low, be sure to check the
brake pads for wear and the brake sys-
tem for leakage.Observe these precautions:
When checking the fluid level,
make sure that the top of the mas-
ter cylinder is level by turning the
handlebars.
Use only the recommended quali-
ty brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
NOTE:_ If DOT 4 is not available, DOT 3 can be
used. _
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
Recommended brake fluid: DOT 4
U5MXE0.book Page 24 Thursday, December 20, 2001 2:08 PM
Page 52 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-25
6
EAU03985
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addition,
have the oil seals of the brake master
cylinder and caliper as well as the
brake hose replaced at the intervals
listed below or whenever they are dam-
aged or leaking.
Oil seals: Replace every two
years.
Brake hose: Replace every four
years.
EAU00770*
Checking the V-belt The V-belt must be checked by a
Yamaha dealer at the intervals speci-
fied in the periodic maintenance and lu-
brication chart.NOTE:_ It is recommended to replace the V-belt
every 25,000 km. _
EAU02962
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
EW000112
WARNING
_ Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafe
conditions. _Recommended lubricant:
Engine oil
U5MXE0.book Page 25 Thursday, December 20, 2001 2:08 PM
Page 53 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
6
EAU04034
Checking and lubricating the
throttle grip and cable The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated or
replaced at the intervals specified in
the periodic maintenance chart.
EAU03118
Lubricating the front and rear
brake levers The pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic main-
tenance and lubrication chart.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
U5MXE0.book Page 26 Thursday, December 20, 2001 2:08 PM
Page 55 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6 To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
EC000098
CAUTION:_ If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it. _
EAU00794
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
EW000115
WARNING
_ Securely support the motorcycle so
that there is no danger of it falling
over. _
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
U5MXE0.book Page 28 Thursday, December 20, 2001 2:08 PM
Page 62 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAUS0013*
Replacing the tail/brake light
bulb or a rear turn signal light
bulb
EC000107
CAUTION:_ It is advisable to have a Yamaha
dealer perform this job. _Place the motorcycle on the center-
stand.
Tail/brake light bulb
1. Remove panel B. (See page 6-5
for panel removal and installation
procedures.)2. Remove the screws, unhook the
tab from the slot, and then pull the
tail/brake light lens outward.3. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Place the tail/brake light lens into
the original position, and then in-
stall the screws.
EC000108
CAUTION:_ Do not overtighten the screws, oth-
erwise the lens may break. _6. Install the panel.
1. Screw (× 2)
1. Tab
2. Slot
1. Tail/brake light bulb
U5MXE0.book Page 35 Thursday, December 20, 2001 2:08 PM
Page 63 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6 Turn signal light bulb
1. Remove the tail/brake light lens.
(See “Tail/brake light bulb” for lens
removal and installation proce-
dures.)
2. Pull the turn signal light lens off. 3. Remove the defective bulb.
4. Insert a new bulb into position.
5. Place the turn signal light lens into
the original position.
6. Install the tail/brake light lens.
1. Turn signal light bulb (× 2)
U5MXE0.book Page 36 Thursday, December 20, 2001 2:08 PM
Page 66 of 72
7-1
7
EAK00000
7-MOTORCYCLE CLEANING AND STORAGE
EAK01302*
A. CLEANINGFrequent, thorough cleaning of your
motorcycle will not only enhance its ap-
pearance but will improve its general
performance and extend the useful life
of many components.
1. Rinse the dirt and degreaser off
with a garden hose.
EUU34602
CAUTION:_Excessive hose pressure may cause
water seepage and deterioration of
wheel bearings, front fork, brakes,
transmission seals and electrical
parts.2. After cleaning the motorcycle, dry
all surfaces with a chamois, clean
towel, or soft absorbent cloth.
3. Automotive-type wax may be ap-
plied to all painted and chrome-
plated surfaces. When finished,
start the engine and let it idle for
several minutes.
EAK00700*
B. STORAGELong term storage (60 days or more) of
your motorcycle will require some pre-
ventive procedures to guard against
deterioration. After thoroughly cleaning
the motorcycle, prepare for storage as
follows:
1. Drain the fuel tank, fuel lines, and
carburetor float bowl(s).
2. Lubricate all control cables.
3. Block up the frame to raise both
wheels off the ground.
4. Tie a plastic bag over the exhaust
pipe outlet to prevent moisture
from entering.
5. If storing in a humid or salt-air at-
mosphere, coat all exposed metal
surfaces with a light film of oil. Do
not apply oil to any rubber parts or
the seat cover.6. Remove the battery and charge it.
Store it in a dry place and re-
charge it once a month. Do not
store the battery in an excessively
warm or cold place (less than 0°C
or more than 30°C).
EUU05800
NOTE:_Make any necessary repairs before
storing the motorcycle.
U5MXE0.book Page 1 Thursday, December 20, 2001 2:08 PM
Page 68 of 72
SPECIFICATIONS
8-2
8
Transmission
Primary reduction system Helical gear
Primary reduction ratio 3.133
Secondary reduction system Spur gear
Secondary reduction ratio 3.583
Number of drive chain
sprocket teeth (rear/front) 43/12
Transmission type V-belt automatic
Operation Centrifugal automatic type
Chassis
Frame type Steel tube underbone
Caster angle 25°
Trail 112 mm
Tires
Fro nt
Ty p e Tu b e t i r e
Size 70/90-16 36P
Manufacturer/
model Dunlop/D110
Rear
Ty p e Tu b e t i r e
Size 80/90-16 43P
Manufacturer/
model Dunlop/D110Tire air pressure
(measured on cold tires)
Front 200 kPa (2.00 kgf/cm
2)
Rear 225 kPa (2.25 kgf/cm2)
Wheels
Fr on t
Type Spoke wheel
Size 16 × 1.40
Rear
Type Spoke wheel
Size 16 × 1.60
Brakes
Fr on t
Type Single disc brake
Operation Right hand
Fluid DOT 3 or 4
Rear
Ty p e
Drum brake
Operation Left hand
Suspension
Fr on t
Ty p e
Telescopic fork
Rear
Ty p e
Unit swing
U5MXE0.book Page 2 Thursday, December 20, 2001 2:08 PM
